Harvard Health Letter The benefits of vitamin supplements Most people do not need to take vitamin supplements, but in some situations, taking the pills may provide health benefits.What are the health benefits of giving children vitamins ...
Paul, there is a scientific basis for the idea that vitamins/minerals in many supplements aren't as readily absorbed. For example, it's true that the magnesium in a supplement is identical to the magnesium in food, but the vitamins in food are often bound in larger molecules that can cross membranes that the isolated compound cannot.Vitamins and Minerals for Healthy Children - WebMD
Megavitamins -- large doses of vitamins -- aren't a good idea for children. The fat-soluble vitamins (vitamins A, D, E, and K) can be toxic if kids get too much of them. Ditto with iron.Children’s Supplements – Safe & Healthy Vitamins For Kids?
Additional children’s supplements can be helpful based on the needs of the individual child. For instance, if a child needs immune support or extra help with bone or teeth health, just adding Vitamin C or calcium would provide the extra help needed.DHA Benefits and Side Effects for Children - Verywell Mind
However, it's not known whether DHA supplements can help treat ADHD in children. For instance, in a 2001 study from the Journal of Pediatrics , researchers found that four months of DHA supplementation failed to decrease symptoms in a group of children with ADHD.